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Oct
14

A number of traditional Chinese herbs may help control blood sugar levels in people at high risk of diabetes, a new research review suggests.

The review, which examined 16 clinical trials of 15 different herbal formulations, found that the herbs generally helped lower blood sugar levels in people with “pre-diabetes” — those with impaired blood-sugar control that can progress to full-blown type 2 diabetes.

When the researchers pooled data from eight of the studies, they found that adding an herbal remedy to lifestyle changes doubled the likelihood of participants’ blood sugar levels returning to normal.

What’s more, people using the remedies were two-thirds less likely to progress to diabetes during the studies, which ran for an average of nine months.

The findings appear in the Cochrane Library, which is published by the Cochrane Collaboration, an international organization that evaluates medical research.

The results, say the researchers, are “quite promising.” However, they also stress that the studies had shortcomings in their methods that make it hard to draw firm conclusions.

There are a lot of herbal medicine products on the shelves, but few have been subjected to a rigorous trial,” lead researcher Suzanne J. Grant, of the Center for Complementary Medicine Research at the University of Western Sydney, in Australia, told Reuters Health in an email.

Many of the trials her team examined, she explained, had a “high risk of bias” that can overestimate the effects of the treatments.

The gold standard for proving a treatment’s efficacy is a clinical trial where participants are randomly assigned to receive either the real treatment or a placebo, with both the researchers and participants unaware of who is taking the real drug.

Grant’s team found that those processes were often absent or not clearly detailed in the trials they reviewed.

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